Lexus LF-Gh concept

If you're in the market for a new Lexus, it'll have to come with four or five doors, unless you've got the $375,000 to shell out on the LFA or want to drop the entire roof with the IS Convertible. But that could all change with the arrival of the new GS line.

The new-for-2013 sedan – previewed by the LF-Gh concept in New York and recently spied undergoing testing at the Nürburgring – is expected to bow at Pebble Beach in just a few weeks. But while that vehicle, like the IS, ES and LS, is expected to be a proper four-door sedan, rumor has it that a coupe version could be in the works as well.

If it comes to fruition, the GS coupe could pick up where the smaller, discontinued SC left off and go up against the likes of the Audi A5, Mercedes-Benz E-Class Coupe and BMW 6 Series, but Inside Line advises it likely wouldn't arrive until the spring of 2013 at the earliest.

A convertible version could be in the cards as well, though Lexus would be just as likely to avoid stepping on the IS C's toes. Of course, this could all come to naught, or Lexus could opt to go an entirely different route for its next two-door model.